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Finding the Fourth Proportional to 227,613.20, 340,642.20 and 199,619.60

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Solution

The fourth proportional to 227,613.20, 340,642.20 and 199,619.60 is: 298,747.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,613.20 : 340,642.20 = 199,619.60 : x
  2. Step 2: Convert to fraction form
    227,613.20/340,642.20 = 199,619.60/x
  3. Step 3: Cross multiply
    227,613.20x = 340,642.20 × 199,619.60
  4. Step 4: Simplify right side
    227,613.20x = 67,998,859,707.12
  5. Step 5: Solve for x
    x = 67,998,859,707.12/227,613.20
  6. Step 6: Final answer
    x = 298,747.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.